samples/ApiDemos/res/layout/game.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2013 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<!-- BEGIN_INCLUDE(complete) -->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    >
    <!-- This is the outer area of the entire game screen, extending out under
         system UI elements. -->
    <view class="com.example.android.apis.view.GameActivity$Content"
        android:id="@+id/content"
        android:src="@drawable/frantic"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="center"
        />
    <!-- This is the inner area of the game, not covered by system UI elements.
        Any UI elements that need to be accessible when the game is paused or other
        states where the system UI is shown (such as in menus) should go here. -->
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        android:animateLayoutChanges="true"
        >
        <Button
            android:id="@+id/play"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top|right"
            android:textSize="28dp"
            />
    </FrameLayout>
</FrameLayout>
<!-- END_INCLUDE(complete) -->